NSButton how to color the text

Question

on OSX I have an NSButton with a pretty dark image and unfortunately it is not possible to change the color using the attributes inspector. See picture the big black button,

Answer 1

Using the info above, I wrote a NSButton extension that sets the foreground color, along with the system font and text alignment.

This is for Cocoa on Swift 4.x, but could be easily adjusted for iOS.

import Cocoa

extension NSButton {
    func setAttributes(foreground: NSColor? = nil, fontSize: CGFloat = -1.0, alignment: NSTextAlignment? = nil) {

        var attributes: [NSAttributedStringKey: Any] = [:]

        if let foreground = foreground {
            attributes[NSAttributedStringKey.foregroundColor] = foreground
        }

        if fontSize != -1 {
            attributes[NSAttributedStringKey.font] = NSFont.systemFont(ofSize: fontSize)
        }

        if let alignment = alignment {
            let paragraph = NSMutableParagraphStyle()
            paragraph.alignment = alignment
            attributes[NSAttributedStringKey.paragraphStyle] = paragraph
        }

        let attributed = NSAttributedString(string: self.title, attributes: attributes)
        self.attributedTitle = attributed
    }
}